While Alexandria Ocasio-Cortez, and her friends in the media, are quintupling down on comparing American detention facilities to concentration camps, a survivor of the real concentration camps in Nazi Germany is livid, and speaking out.

Ed Mosberg is 93 years old, and is one of the few people still alive who survived the Nazi camps. He lives in Morris Plains, NJ, and he spoke to the New York Post about the freshman congresswoman's comments.

"She should be removed from Congress. She's spreading anti-Semitism, hatred and stupidity," he said to the paper. "The people on the border aren't forced to be there — they go there on their own will. If someone doesn't know the difference, either they're playing stupid or they just don't care."

It's not just about the intent or the status of the people at the border, but the offensiveness of the comparison itself. Mosberg's whole family was killed, murdered by the Nazis. He was the lone survivor, and made it out of two concentration camps, Plaszów and Mauthausen.

Mauthausen, located in Austria, was one of the biggest, and one of the longest to be continuously operated and last to be liberated. The Nazis called it Knochenmühle. "The bone mill."

Of the Mauthausen concentration camp, the United States Holocaust Memorial Museum writes: "An estimated 197,464 prisoners passed through the Mauthausen camp system between August 1938 and May 1945. At least 95,000 died there. More than 14,000 were Jewish."

Survivors counting the corpses of prisoners killed in the Mauthausen concentration camp.Copyright: Public Domain, Courtesy: United States Holocaust Memorial Museum

Mosberg still has a prisoner's striped uniform from the camp, complete with the yellow Star of David marking him as a Jew.

"I saw people being hung, being beaten to death, [attacked] by dogs. I was laying on the ground, [the Nazi guards] were trying to kill me,' he recounts. He was a teenager at the time of the Nazi concentration camps.

Ocasio-Cortez's inflammatory use of the term prompted Mosberg and his organization to extend an invitation to her to join him in a visit to the camps, to gain perspective and education. AOC turned him down, claiming the survivor of unspeakable horrors was part of a "far-right" plot against her.

Mosberg told the Post for their article published on Saturday that he was "very disappointed" she turned down the invitation.

""She should be taught a lesson," he said. "If you're not there, you will never know what happened. She doesn't want to learn — she's looking for excuses. I would like to nominate her for the Nobel Prize in stupidity."

He explained what it was she turned down and considered a plot. "I can show her where they killed my mother, my grandparents and cousins so she understands this," he told the Post. "I will bring her to the place where they give my wife's mother [benzine] injections to the heart and put her on the fire."